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Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 285,363 | $ 279,590
Accumulated Amortization | 158,344 | 149,001
Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 227,405 | 225,631
Accumulated Amortization | 116,189 | 109,216
Trade Names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 30,359 | 30,359
Accumulated Amortization | 21,625 | 20,861
Non-Compete Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 10,071 | 9,440
Accumulated Amortization | 7,753 | 7,158
Core Deposits [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 8,615 | 8,615
Accumulated Amortization | 7,812 | 7,389
Investment Banking Backlog [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 8,913 | 5,545
Accumulated Amortization | $ 4,965 | $ 4,377

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